code: def setUp(self) -> None:
      self.data_size = 10
      self.dimension = 7
      self.num_classes = 11
  
file_path: opacus/opacus/tests/dpdataloader_test.py
imports: import unittest
  import torch
  from opacus.data_loader import DPDataLoader
  from torch.utils.data import DataLoader, TensorDataset
label_desc: Use image node_id 1 for calling the DPDataLoaderTest obj's underlying member method code with example usage: obj.setUp() without return types